Having used PDFcreator on Windows for many years, a PDF printer is something that you miss very quickly on a fresh install operating system.
Linux is no exception, and cups-pdf provides a PDF printer for the most excellent CUPS. (I normally despise Apple software, but I have to give them credit for CUPS. :))
To install on a Debian/Ubuntu machine:
apt-get install cups-pdf
Once installed, you should now have a new PDF printer showing up in CUPS.